Martin a



reuma im, 27,. 'ieai' l 1,790,603

UNITED. sei-Aras PATENT ossics mama. Bmx, orrrrrsaunen, mnsnvmia n .appliance nea December so, im -:man in. savane.

This-invention relates to surface drains, in substantially central vertical cross section i and the 'primary object is to provide a nonand shows a removable sediment receptaclog drain' that is to say, one which will cle; Fig. 2 is a view similar to Fig-1,A showadmit the iree flow of liquids therethrough, in a' modified form of drain with a fixed `but which will prevent refuse from entering sediment chamber, and further showing a 50 the main outlet of the drain and obstructmodified arrangement of drain outlet. ing-the same. A more specific ob'ect is to The general features of the present inprovide a surface drain which wi revent vention are as follows: There is a hollow obstruction of the drain outlet by seating drain body open at the top land provided obstruction ofthe drain outlet by submerged size of solids which may enter the Solids or sediment. Beyond this is a liquids and solids conveyor A further object is to provide a sim le preferably centrallyl of the drain andcom-' drain construction aording remova le municating with t e grate openings, and

chambers which will receive and retain both which carries these liquids and solids toward e0 iloatingand submerged refuse in such posithe bottom of the drain. The conveyor dis-i` tion as not toobstruct the passage of lipuids charges into a sediment chamber located at until such time as the accumulation o refthe bottom of the drain body. use renders `removal thereof necessary. Associated with the sediment chamber is er specific objects include the proa' refuse retention device which maybe varie5 i vision of a simple and veifective device for ously arranged depending n`- the character 1 re both submerged and floating solids ofrefse and the manner in which it is de and which will facihtate simultaneous re ysired to retain the same, for example, whethmoval of solids of each character mena ,er liquids. of a tparticular character or i tione'd. j whether solids, an if solids whether these 7o Furthgrobjectsinclude the provision of are tobe retained above and below the a drain injwhich all oatin l1i uids, such asliquids 'level of the ent chamber, etc. light oils, line andV e ke, may be A, characteristic shown, '--isthe provision used 'scharge into the main outlet of auxilia inlet openin and an auxiliary. Aleading to the sewer, while retaining iioat- .inlet cham r below suc openin r which, 75 l in and submeied solids, in the event thatsolids accumula within other s c object :is to provide a the drain to such anextent that liquids can floating solidgec retaining device including a not get throughin the usual manner to the liquids strainer which willact on such sol main outlet, will permit liquids to be drained ids while still submerged, to`direct them in oil' the door su lntiall directly into the an suc manner as not to tend te clog the sewer drain line throug the main putlet, l strainer. y l by-passin .thereuse retainer. This ar- Further objects and features of the inrangeme'n just discussed also provides ventvention will become apparent from the fol in means to prevent the accumulation of ll)- lowing description re i anying drawin wherein I show the re; from being trapped an retained 1n the erred forms o the invention, inclu 'n'g drain body. e various modifications. The essential char- A further general feature ofthe invention acteristics are summarized inthe claims. A 'is the arrangement of retainer walls and solids or refuse and which will'also prevent with a grate structure for determinilgillile 55 ating to'the accomvo atile gases, particular?Y explosive gases, M

l -'In the drawings; Fig. 1 illustrates 'a drain strainer 4openings by which buoyant solids 9o is indicated at 10.

16 therethrough, prefera temporarily submerged by a 'tation of the liquid containing them, are orced in a direction contrary to that which would naturally result in clogging the strainer openings.

With the above general description in view, my invention resides in various arrangements designed to carry out the above objectives and embody the features generally discussed above, as well as other specilic features to be later set forth.

Referring again to the drawin 1 indicates the drain body. This has a s ouldered opening at the top designated 2, and a flange 3 adjacent to the opening which overhangs the side walls of the body, outwardly therefrom, and forms a strengthenin rib for the top of the body. Below the ange 3 and extending outwardly from the side wall of the body is a flange 4 which may be considerably varied in construction, but which is preferably terraced as at 5,'partly to provide securing anchor surfaces for the concrete formation of the fioor, but mainly to direct seepage liquid toward the body.

The flanges 3 and 4 cooperate in holding the drain body in position in the door structureV since, in the event that the body of concrete extends-no lower than the lowermost surfaces of the flange 4, the drain will be prevented rom shifting either up or down, as will be appreciated from inspection of the drawings. Further, the flange 3 reduces chipping of the concrete at the edge of the fitting by reason of overhanging an annulus of concrete therebeneath and strengthening the same.

Associated with the anchor 4 and extending throu h the body wall, are a suitable seepage openings 6 which drain oil any liquid which may accumulate about the body below the flange 3, this seepage discharging into the drain body, and thence to a main outlet to be presently described.

The drain body is provided with an outlet hub. The hub 7 Yis disposed at the bottom of the body. The main discharge opening Referring again to the drawings, 15 is a suitable main inlet closure member i'n the nature of a grate havin enlarged openings ly diverging downwardly to prevent clogging, the outer edges of the grate being seated in the shouldered opening 2, and resting on the shoulder. Below the grate and substantially in intimate contact therewith soy as to catch all materials, whether liquids or solids entering the main grate openings 16, is a hollow conveyor member 18 forming a main liquids and so ids receiving chamber. This conveyor, as shown, has a downwardly converging wall 19, joining a more restricted extension 20 to discharge liquids and solids centrally of the drain body.

may comprise an extension thereof to The'li nids and solids conveys;` dip of the sediment resently shown, t refuse and to if desired, prolow the normal liquids level chamber, formed as will be to prevent agitation of caug provide a water seal. I may, vide a removable extension 20', engaging an supported by the conveyor member 18.

t is to be understood, of course, that the sediment chamber may be fixed or removable, and is 4disposed to catch all materials passing through the conveyor. Fig. 2 illustrates a fixed sediment chamber, comprising the bottom 25 and adjacent sidewalls of the drain body 1 below the liquid level L--L.

In the drawings there is disclosed a" removable sediment chamber, comprising a receptacle 23 in the nature of a bucket, having supporting lugs 24, for resting on the bottom of the drain body. ln this and similar instances, the sediment receptacle brim determines a liquids level L above the general body liquids level L. The sediment receptacle has a suitable number of lugs preferably our, two of which are arrange port abail 27, adapted to lie within the drain body and at one si'de of the conveyor 18 in easily accessible position.

The refuse retention means, as shown in the drawing, are rigidly associated with and include part of the conveyor. As shown, the lower end o the extension 2O has rigid there-` with a downwardly diverging skirt 30. In Fig. 1, this rests on and is supported by a suitable number of inwardly projecting lugs 31, formed on the wall ofthe sediment receptacle 23. The rigidly combined elements may be removed from the body by the use of a handle, comprising a cross bar 28 positioned in suitable registering openings near the top of the conveyor member 18.

The retainer member 30, in order to hold back substantiall all solids while permitting excess liqui s to drain from the sediment receptacle through the body to the main channels, shown as small horizontally extending perforations 33 therethrough. The member 30 cooperates with the sediment to supchamber wall to prevent escape of either sub- 4 merged or {ioating shown, this cooperation is effected by continuous line contact of the outer edge of the skirt with the sediment chamber `wall. ln Fig. 2 the skirt has an impeforate horizontal flange 32, substantially continuously engaging the main drain body wall. when it is desired to discharge fioating liquids, the openings 33 are disposed at the liquids level L as at 33' and below this level.

By the arrangement shown, it will be seen that sediment discharged through the conveyor will be deposited at the bottom of -the sediment receptacle while floating refuse, temporarily submerged, will be wardly by the inclined wall 30, and in rection generally contrary a dito that favoring solids therebetween. As A directed upy 5 discharged through the openin a tendency to clog the openings 33, into the im erforate part of the retention means.

t will be noted that the openings, such as 33, comprising the outlet of the retention means, are of individually lesser area than termines the liquids level L within the drain body. It is desirable, particularly where a removable sediment receptacle is provided, to 'have its liquids level above the level L; as shown, for example, so that buoyant liquids 33 will more readily drain o the top o the receptacle 23, so as not to be removed with the rece tacle.

t is manifest that continued use ofthe u drain without cleaningwill eventually result in blocking the intended channels b accumulated refuse so t at a pool of liqui may be caused to stand bove the main inlet to the drain body for ,considerable period. This is obviousl undesirable. To reventv this, I provide t e auxiliary inlet an by-pass discharge, previously mentioned.

The by-passin arran ment, as shown, comprises a suita le num r of small openings 17, outwardl from the larger opening 16, preferbly ownwardlg' divergin in shape to revent clo ging y solids uch o nin p ie outward y from the to edge of t e mam inlet chamber, so as to disc arge directly into the body without passing through the sediment chamber, the retainer, etc. Thus, assumin the normal passa s are clogged, li uid rom the surface to be rained wil pass t rough the opening l'', and run directly down into the drain outlet 10. The auxiliary inlet openings are much smaller than the main inlet openings, hence, although they will serve to drain the surface above of liquid so long as this surface is kept clean of refuse, the device acts as a tell-tale to inform the attendant when the solids retention means are obstructed, because liquid will run through the ,openings 17 much more slowly than throu h the normal channels.

The openings 1g have a further function in that they will discharge all volatile gases accumulatin within the drain body and likely to stand a ut the conveyor 18, where they might cause an explosion 1f ignited when the various parts are removed for cleaning.

The conveyor, previously desi has restricted extension or dip-pipe roper formed at which enters the se iment chamber to a point below the liquids level thereof, making an air seal and causing )he ated 18,

dischar into the sediment chamber to be below t e liquids level, thus causing light oils and other buoyant liquids, gasoline for example, to overflow the sediment receptacle. In ot er words, oil and gasoline remaining from previous discharges at the top of the sediment chamber is immediately washed out and does not become emulsiiied with the water.

The bottom or outlet end of the extension, 20' may also extend some distance below the lowermost outlet holes of the retainer, and thus comprise the lowermost portion of the retention means. Thus, submerged solids accumulating within the sediment chamber may reach and obstruct the outlet end of the extension before reachingand obstructing the retainer outlet holes, and preventing formation of a static head of water within the retention means and`beyond the extension 1 P The outlet of the extension 20 is preferabl of lesser area than that of any of the out ets beyond the extension thereby creating an easy discharge through the drain, preventing undue disturbance of solids held therein, and also preventing undue rise of the liquids level.

The retainer member and extension or dip pipe, and incidentally all the tubular bodiesof the illustrated constructions, are prefer- 4ably circular in cross section, but may be of anv desired shape,

uare for example. ln the above description, the terms floating and submerged have been used extensivel as modifying solids. It will be understoo however, that in certain instances the parts of the solids retention means function without regard to the character of solids. The terms floating and submerged as ap-` pearing in the claims are, therefore, in general not to be construed as limiting but` rather explanatory terms.

I claim 1. A drain comprising a body having a main inlet to admit liquids and solids, means forming a main inlet chamber within the body and communicating with the main inlet, means forming a sediment chamber beyond the inlet chamber and into which the latter dischar es, a main outlet for the drain body dispose beyond the sediment chamber to receive liquids therefrom, and a solids retention means extendin downwardly materially below the liquidsevel of the sediment chamber, said retention means being disposed between the sediment chamber and main outlet and cooperating with the sediment chamber wall to block the exit of both submerged and floating solids from the sediment chamber between the retention means and such chamber wall, the retention means being arranged to allow the passage of liquids from the sediment chamber to the main outlet and to retain such solids against obstructing the main outlet.

2. A drain according to claim 1, wherein the main inlet includes a member having a plurality of inlet openings, and the retention means includes a hollow body having a wall substantially in continuous line contact with the sediment chamber wall, and providing liquid discharge openings `of individually lesser area than the main inlet openings.

3. In a drain, a hollow body having a main inlet, a conveyor for-liquids and solids beyond said inlet and communicating therewith, means forming a sediment chamber into which the conveyor discharges, and retention means including a wall member extending substantially from the inner wall of the chamber below the liquids level of the chamber to a point materially above the li uids level of the chamber, arranged to retain othV submerged and floating solids from escaping from the drain, said wall being perforate below the liquids level of the chamber to permit liquids to pass from the sediment chamber unobstructed by accumulated floating refuse, and main outlet means to receive such liquids and conduct them from the body.

4. A drain according to claim 3, wherein the perforate portion of the solids retainer wall inclines toward the vertical axis of the sediment chamber and upwardly to divert the floating solids in a direction away from the perforations, as these solids rise to the liquids level of the sediment chamber.

5. Apparatus according to claim 3, wherein the retention means is tubular and has a plurality of openings therethrough for conducting liquid from the sediment chamber outwardly to the main outlet, the openings providin substantially horizontally extending relatlvely small channels, and the retention means converging upwardly to deflect buoyant solids away from such channels.

6. In a drain, a drain body having a main inlet, tubular conveying means below said inlet and communicating therewith, means forming a sediment chamber below said conveying means, and a tubularsolids retention member cooperating with the sediment chamber wall and the wall of the conveying means to substantially block all exit of solids from the drain while all'ording exit for liquids, said member forming within itself a substantially continuous retaining space for floating solids.

7. A drain comprising a body having a main inlet for liquids and solids, means forming a main inlet chamber within the bod and communicating with said inlet, means orming a sediment chamber beyond the inlet chamber and into which the latter dischar es, a main outlet for the drain body disposed eyond the sediment chamber to receive liquids therefrom, there being an extension pipe communicating with the inlet chamber and disposed with its discharge end below the brim of the sediment chamber to effect an air seal therewith, and tubular means disposed outwardly from said extension and cooperating with the extension to form a floating solids retaining space.

8. In a drain, a hollow body having a removable perforate top closure, tubular means communicating with the perforations and extending downwardly into the body, means forming a sediment chamber including means associated with the chamber to maintain a constant liquids level above the discharge end of the tubular means to form a water seal therewith, and means including a continuous partially submerged wall arranged about and 1n generally spaced relation to said discharge end of the tubular means and substantially in line contactA with the entire side wall of the sediment chamber, said last named means being arranged to provide openings for discharging liquids while retaining both submerged and floating solids against exit from the drain body, and means affording an outlet for said body.

9. In a drain, a body having a perforate top closure, a sediment receptacle beyond the closure and means to maintain a constant liquids level for said receptacle, means to direct liquids and solids from the closure toward the receptacle, means at least partially submerged in the sediment receptacle and lying outwardly from the lowermost portion of the directin means, and including a wall having per orations therethrough individually smaller than the perforations of the closure for retaining both submerged and floating refuse discharged toward the receptacle by the directing means, against exit from the body, While alfording passa e for liquids, and a main outlet for the body gor receiving such liquids.

10. A surface drain according to claim 9, wherein said perforate wall of the solids retainer has the perforations thereof disposed at and below the liquids level to discharge buoyant liquidsfrom the receptacle, and said wall has a substantially imperforate tubular body portion above the liquids level.

l1. In a drain, a body having a perforate top closure, tubular conveyor means below the closure communicating with the perforations thereof, a sediment receptacle below the conveyor, and means to maintain a constant liquids level for said receptacle, solids retention means partially submerged in the sediment receptacle and extending above the liquids level, said retention means being disposed outwardly from the tubular means, and including a wall having perforations therethrough, said wall extending above and below the liquids level for retaining both submerged and {loatin solids, discharged toward the receptacle tlrough the tubular means, against lll for liquids.

- 12. A` retaining device for drams, coinprising means to maintain a normal liquids level in the drain body, and a tubular member extending above and below such level andA having an upwardly converging portion below su'ch leveLwith'substantially horizontally exit from the body, while affording drainage extending openings therethrough.

from the sediment chamber, and an auxi g mean's to maintain a normal liquids level in the drain body uous floating and submerged solids retainer wall within the body having an inclined portion extending below such level with strainer openings therethrough below such level, whereb loatable solids buoyed upwardl along the inclined portions are given a ten ency to clear rather than clog the openings.

14. A drain oomprisiu` a body having a main inlet to admit liquif affording a main outlet, conduit means interposed between said inlet and outlet arranged to retain solids from passing to said outlet while assing liquids thereto, and an auxiliary et for liquids arranged to b -pass the conduit means and ass said liqui `s directly to the drain outlet in the event the conduit means becomes clogged by accumulated refuse. e

15. A drain according to claim 14, wherein both inlets comprise means providing a plurality of openings near the surface to be drained and the auxiliary openings are of individually lesser area than the main inlet openings.'

16. drain comprising, a body having a main inlet member arranged to admit liquids and solids, tubular means forming amain inlet chamber within the -body and communicating with the Amain inlet, a sediment chamber within the body, and solids retaining means associated therewith arranged for holding submerged and iioatin solids in the vicinity of the sediment cham r, a main outlet for the body to receive and drain excess li uids iary liquids inlet associated with the main inlet member and including means having an inlet opening communicating with the surface above the drain body and directly with the interior of the body between the wall thereof and the main inlet chamber, for by-passing the main flow directly into the main outlet through the body in the event either the inlet chamber or sediment chamber become blocked by accumulation of refuse.

17. In' a drain, a hollow body having a main inlet to admit liquids and solids, means forming a main inlet chamber Within the body and communicating with the main inlet, means forming a sediment chamber below the inlet chamber and into which the latter discharges, a retaining means arranged about the main inlet chamber and extending into 13.. A retaining device for drains, compris,

and a substantially contin and solids, means substantiall Sediment c .means for permittin the exit of li uids from the sediment cha r while hol g back both submerged and floating refuse, there bemg a dip ipedisposed as a continuation of the. inlet c amber, said pipe discharging ma.- terially below the liquids level of the sediment chamber to form an air seal therewith and torevent agitation of retained floating refuse y precipitate charging of the drain.

18.. Apparatus according to claim 17, wherein t e dip pipe ortion ofthe apparatus 1s removably d1sposed)in the main inlet chamr forming means.

19. In a paratus of the character described, a rain body having a main inlet, and an outlet arranged to maintain a liquids level above the bottom of the body, conveying means communicating with said inlet, means forming a sediment chamber disposed at the dischar e end of said conveyin means and arrangedg to maintain a liqui s level above the aforesaid liquids level, and a retainer arranged to prevent exit of solids from the vicinity of the sediment chamber while discharging both light and heavy liquids substantially at such higher liquids level.

20. A drain comprising arbody having a main inlet, means forming a main inlet chamber within the body and communicating with the inlet, said chamber having a restricted discharge extension, means forming a sediment chamber in the bod and means affording a 1i uids level there or materially above 100 the disc arge end of the said extension, a solids retaining means interposed between said extension and the sediment chamber for holding Boating refuse in the vicinity of the sediment chamber, viding a liquids outlet therefrom, and a main outlet for the body toreceive and drain excess liquids from the sediment chamber, the discharge area of said extension being less than the area of either the said liquids out- 110 let from saidretaining means or said main outlet.

2l. In a drain, a body having a main inlet for liquids and solids and 'a main outlet, a removable receptacle disposed within the 115 body and adapted to be removed from the drain, there being means to convey such liquids and solids to the receptacle, and assolids retention means within the body and engaging the receptacle and coo rating there- 120 with to block the passage oimsolids to the main outlet while passin liquids thereto.

22. In a drain, a hollow od having a main inlet and a main outlet, tubular retension means communicating with the main inlet 125 and the main outlet, means forming a solids chamber arranged to receive discharge from the main inlet and affording a normal liquids level in said chamber, the retention means extending downward materially below 130 said retaining means pro- 10s the liquids level of the solids chamber and cooperating with the solids chamber to block the exit of solids from the solids chamber, the retention means being also arranged to allow passage of liquids from the solids chamber to the main outlet.

23. A drain according to claim 22 wherein the solids chamber comprises a sediment receptacle removable from the drain bod In testimony whereof, I hereunto a my signature.

MARTIN A. sisi(I the liquids level of the solids chamber and cooperating with the solids chamber to block the exit of solids from the solids chamber, the retention means being also arranged to allow passage of liquids from the solids chamber to the main outlet.

23. A drain according to claim 22 wherein the solids chamber comprises a sediment receptacle removable from the drain bod.

In testimony whereof, I hereunto a x my signature.

MARTIN A. sIsK.

CERTIFICATE OF CORRECTION.

Patent No. 1,790,603. t Granted January 27, 1931, to

MARTIN A. SISK.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 108, alter "main" insert the words outlet, is provided with liquid discharge; page 4, line 108, claim 10, strike out the word "surface"; page 5, line 124, claim 22, lor the misspelled word "retension" read retention; and that the said Letters Patent should be read with these corrections therein that the same may contonn to the record of the case in the Patent Office.

Signed and sealed this 17th day of November, A. D. 1931.-

M. I. Moore.

(Seal) Acting Commissioner of Patente.

CERTIFICATE 0F CORRECTION.

Patent No. 1,790,603. Granted January 27, 1931, to

MARTIN A. SISK.

lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 108, after "main" insert the words outlet, is provided with liquid discharge; page 4, line 108, claim l0, strike out the word "surface"; page 5, line 124, claim 22, for the misspelled word "retension" read retention; and that the said Letters Patent should be read with these corrections therein that the same may confonn to the record of the case in the Patent Office.

Signed and sealed this 17th day of November, A. D. l93l.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

